Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #179932

Installer: problem installing onto LVM on RAID1

Show all headers | View raw

List, good evening,

I am trying to install Debian onto an LVM, and I want the LVM to use a 
pair of disks in a RAID1 configuration.  I'm having difficulty 
instructing the partitioner to do this.

I have a new, empty, machine with 2 x 3TB disks.  This new machine is 
intended to replace our existing users-files server, which has nearly 
exhausted its current fit of RAID1 on 2 x 2TB disks.  (The server of 
the files uses samba and NFS.)  Some time ago I received advice from 
the raid list that in future I could consider using an LVM so that 
when an existing volume is full it (if it is an LV) can be extended 
across additional disks.  Now that our existing system has reached its 
capacity limit, I'd like to replace it - and also take that advice.

While trying to install Debian 7.11/amd64 onto the new HW, I reach the 
partitioner and can (first) set up a single md (md0) RAID1 over the 2 
x 3TB disks.  Next I can set up an LVM physical volume (3TB), and I 
can then set up a 3TB logical volume for '/'.  (I think I'm happy with 
the system, /home, and the general 'users-files' filesystem all 
sharing the one logical volume - similar to how a simple basic Debian 
install can be done on a whole disk.)

But the installer complains because I don't have any swap - and (in 
addition) I am unsure if I need to do something different for GRUB and 
booting.  I first tried using the 'guided' partitioner (I thought it 
might 'know best' about needing boot and / and so on) but I didn't 
seem to be able to ask it to use RAID *and* LVM.  I could ask it to 
make a RAID1, or an LVM.  May I ask the list a couple of questions?

What partitions - I think I mean logical volumes - might I be best 
using for my installation, keeping in mind that I will need to extend 
whatever logical volume houses the 'users-files'?

Is using a whole-disk RAID1 a reasonable choice (the kernel raid wiki 
suggests this will work) or would folks on the list recommend 
configuring multiple mds?

I would be grateful for any guidance,

regards, Ron

Back to linux.debian.user | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Installer: problem installing onto LVM on RAID1 Ron Leach <ronleach@tesco.net> - 2017-04-09 19:50 +0200
  Re: Installer: problem installing onto LVM on RAID1 Andy Smith <andy@strugglers.net> - 2017-04-09 20:10 +0200
  Re: Installer: problem installing onto LVM on RAID1 Georgi Naplatanov <gosho@oles.biz> - 2017-04-09 21:10 +0200
  Re: Installer: problem installing onto LVM on RAID1 Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-09 22:10 +0200

csiph-web